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HHH-17777 Add test for issue

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Marco Belladelli 2024-03-01 13:12:11 +01:00 committed by Christian Beikov
parent ed4910790e
commit b3955d7d75
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hibernate-core/src/test/java/org/hibernate/orm/test/query/hql/ToOneMultipleFetchesTest.java Normal file
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/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later
* See the lgpl.txt file in the root directory or http://www.gnu.org/licenses/lgpl-2.1.html
*/
package org.hibernate.orm.test.query.hql;
import org.hibernate.Hibernate;
import org.hibernate.query.sqm.InterpretationException;
import org.hibernate.testing.orm.junit.DomainModel;
import org.hibernate.testing.orm.junit.Jira;
import org.hibernate.testing.orm.junit.SessionFactory;
import org.hibernate.testing.orm.junit.SessionFactoryScope;
import org.junit.jupiter.api.AfterAll;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Test;
import jakarta.persistence.Entity;
import jakarta.persistence.FetchType;
import jakarta.persistence.Id;
import jakarta.persistence.ManyToOne;
import jakarta.persistence.criteria.CriteriaBuilder;
import jakarta.persistence.criteria.CriteriaQuery;
import jakarta.persistence.criteria.Fetch;
import jakarta.persistence.criteria.JoinType;
import jakarta.persistence.criteria.Root;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.fail;
/**
* @author Marco Belladelli
*/
@DomainModel( annotatedClasses = {
ToOneMultipleFetchesTest.EntityA.class,
ToOneMultipleFetchesTest.EntityB.class,
ToOneMultipleFetchesTest.EntityC.class,
ToOneMultipleFetchesTest.EntityD.class,
} )
@SessionFactory
@Jira( "https://hibernate.atlassian.net/browse/HHH-17777" )
public class ToOneMultipleFetchesTest {
@BeforeAll
public void setUp(SessionFactoryScope scope) {
scope.inTransaction( session -> {
final EntityC entityC = new EntityC( 1L, "entity_c" );
session.persist( entityC );
final EntityD entityD = new EntityD( 2L, "entity_d" );
session.persist( entityD );
final EntityB entityB2 = new EntityB( 3L, entityC, entityD );
session.persist( entityB2 );
session.persist( new EntityA( 4L, entityB2 ) );
} );
}
@AfterAll
public void tearDown(SessionFactoryScope scope) {
scope.inTransaction( session -> {
session.createMutationQuery( "delete from EntityA" ).executeUpdate();
session.createMutationQuery( "delete from EntityB" ).executeUpdate();
session.createMutationQuery( "delete from EntityC" ).executeUpdate();
session.createMutationQuery( "delete from EntityD" ).executeUpdate();
} );
}
@Test
public void testCriteriaMultipleFetches(SessionFactoryScope scope) {
scope.inTransaction( session -> {
final CriteriaBuilder builder = session.getCriteriaBuilder();
final CriteriaQuery<EntityA> query = builder.createQuery( EntityA.class );
final Root<EntityA> root = query.from( EntityA.class );
root.fetch( "entityB", JoinType.INNER ).fetch( "entityC", JoinType.INNER );
root.fetch( "entityB", JoinType.INNER ).fetch( "entityD", JoinType.INNER );
final EntityA result = session.createQuery( query ).getSingleResult();
assertThat( Hibernate.isInitialized( result.getEntityB() ) ).isTrue();
final EntityB entityB = result.getEntityB();
assertThat( Hibernate.isInitialized( entityB.getEntityC() ) ).isTrue();
assertThat( Hibernate.isInitialized( entityB.getEntityD() ) ).isTrue();
} );
}
@Test
public void testCriteriaFetchReuse(SessionFactoryScope scope) {
scope.inTransaction( session -> {
final CriteriaBuilder builder = session.getCriteriaBuilder();
final CriteriaQuery<EntityA> query = builder.createQuery( EntityA.class );
final Root<EntityA> root = query.from( EntityA.class );
final Fetch<EntityA, EntityB> fetchEntityB = root.fetch( "entityB", JoinType.INNER );
fetchEntityB.fetch( "entityC", JoinType.INNER );
fetchEntityB.fetch( "entityD", JoinType.INNER );
final EntityA result = session.createQuery( query ).getSingleResult();
assertThat( Hibernate.isInitialized( result.getEntityB() ) ).isTrue();
final EntityB entityB = result.getEntityB();
assertThat( Hibernate.isInitialized( entityB.getEntityD() ) ).isTrue();
assertThat( Hibernate.isInitialized( entityB.getEntityC() ) ).isTrue();
} );
}
@Test
public void testMultipleFetchesError(SessionFactoryScope scope) {
scope.inSession( session -> {
final CriteriaBuilder builder = session.getCriteriaBuilder();
final CriteriaQuery<EntityA> query = builder.createQuery( EntityA.class );
final Root<EntityA> root = query.from( EntityA.class );
root.fetch( "entityB", JoinType.LEFT );
try {
root.fetch( "entityB", JoinType.INNER );
fail( "Multiple fetches with different join types should not be allowed" );
}
catch (Exception e) {
assertThat( e )
.isInstanceOf( IllegalStateException.class )
.hasMessage(
"Requested join fetch with association [entityB] with 'inner' join type, " +
"but found existing join fetch with 'left outer' join type."
);
}
} );
scope.inSession( session -> {
try {
session.createQuery(
"from EntityA a " +
"join fetch a.entityB b1 join fetch b1.entityC " +
"join fetch a.entityB b2 join fetch b2.entityD",
EntityA.class
);
}
catch (Exception e) {
assertThat( e )
.isInstanceOf( InterpretationException.class )
.getCause()
.isInstanceOf( IllegalStateException.class )
.hasMessage( "Cannot fetch the same association twice with a different alias" );
}
} );
}
@Test
public void testHQLMultipleFetches(SessionFactoryScope scope) {
scope.inTransaction( session -> {
final EntityA result = session.createQuery(
"from EntityA a " +
"join fetch a.entityB b1 join fetch b1.entityC " +
"join fetch a.entityB join fetch a.entityB.entityD",
EntityA.class
).getSingleResult();
assertThat( Hibernate.isInitialized( result.getEntityB() ) ).isTrue();
final EntityB entityB = result.getEntityB();
assertThat( Hibernate.isInitialized( entityB.getEntityD() ) ).isTrue();
assertThat( Hibernate.isInitialized( entityB.getEntityC() ) ).isTrue();
} );
}
@Test
public void testHQLFetchReuse(SessionFactoryScope scope) {
scope.inTransaction( session -> {
final EntityA result = session.createQuery(
"from EntityA a " +
"join fetch a.entityB b left join fetch b.entityC join fetch b.entityD",
EntityA.class
).getSingleResult();
assertThat( Hibernate.isInitialized( result.getEntityB() ) ).isTrue();
final EntityB entityB = result.getEntityB();
assertThat( Hibernate.isInitialized( entityB.getEntityD() ) ).isTrue();
assertThat( Hibernate.isInitialized( entityB.getEntityC() ) ).isTrue();
} );
}
@Entity( name = "EntityA" )
public static class EntityA {
@Id
private Long id;
@ManyToOne( fetch = FetchType.LAZY )
private EntityB entityB;
public EntityA() {
}
public EntityA(Long id, EntityB entityB) {
this.id = id;
this.entityB = entityB;
}
public EntityB getEntityB() {
return entityB;
}
}
@Entity( name = "EntityB" )
public static class EntityB {
@Id
private Long id;
@ManyToOne
private EntityC entityC;
@ManyToOne( fetch = FetchType.LAZY )
private EntityD entityD;
public EntityB() {
}
public EntityB(Long id, EntityC entityC, EntityD entityD) {
this.id = id;
this.entityC = entityC;
this.entityD = entityD;
}
public EntityD getEntityD() {
return entityD;
}
public EntityC getEntityC() {
return entityC;
}
}
@Entity( name = "EntityC" )
public static class EntityC {
@Id
private Long id;
private String name;
public EntityC() {
}
public EntityC(Long id, String name) {
this.id = id;
this.name = name;
}
}
@Entity( name = "EntityD" )
public static class EntityD {
@Id
private Long id;
private String name;
public EntityD() {
}
public EntityD(Long id, String name) {
this.id = id;
this.name = name;
}
}
}